WO2023281615A1 - Dispositif de pliage de papier - Google Patents

Dispositif de pliage de papier Download PDF

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Publication number
WO2023281615A1
WO2023281615A1 PCT/JP2021/025409 JP2021025409W WO2023281615A1 WO 2023281615 A1 WO2023281615 A1 WO 2023281615A1 JP 2021025409 W JP2021025409 W JP 2021025409W WO 2023281615 A1 WO2023281615 A1 WO 2023281615A1
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WO
WIPO (PCT)
Prior art keywords
paper
folding
conveying
pair
folded
Prior art date
Application number
PCT/JP2021/025409
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English (en)
Japanese (ja)
Inventor
力 宮本
政信 大橋
Original Assignee
デュプロ精工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by デュプロ精工株式会社 filed Critical デュプロ精工株式会社
Priority to PCT/JP2021/025409 priority Critical patent/WO2023281615A1/fr
Priority to EP21949251.9A priority patent/EP4368548A1/fr
Publication of WO2023281615A1 publication Critical patent/WO2023281615A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/107—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by means of swinging or reciprocating guide bars

Definitions

  • the present invention relates to a paper folding device. More specifically, the present invention relates to a paper folding device suitable for a bag making machine for making envelopes, a sealing device, and the like.
  • a sealing device provided with a paper folding mechanism that folds a flap while moving the envelope along a predetermined conveying path
  • the envelope with the adhesive film attached is pushed by the flap pressing mechanism (paper folding mechanism). mechanism), where the folding plate rotates to fold the flap and press the flap against the envelope body, thereby sticking the flap to the envelope body.
  • the paper folding mechanism of the sealing device depending on the conditions such as the type and size of the paper to be folded, the paper cannot be conveyed in a stable state, and wrinkles may occur at the folds of the paper. may adversely affect the quality of deliverables. Further, when the folding plate rotates and the flap portion is folded, the sheet may be misaligned at the processing portion, which may cause problems such as an inaccurate folding line position.
  • the object of the present invention is to solve the problem of the paper folding mechanism for folding back the flap portion of the envelope as the above-mentioned prior art, and to solve the problem that wrinkles are generated at the folded portion of the paper regardless of the conditions such as the type and size of the paper to be folded.
  • a paper folding mechanism paper folding device
  • the first aspect of the invention provides a paper folding device for folding a flat sheet of paper while conveying it along a paper conveying path, wherein the sheet of paper is fed from a main body and from the main body. It has an overhanging folded portion, is provided at a folding position for folding the folded portion of the paper in the paper transport path, and the folded portion of the paper is centered around a rotation shaft substantially parallel to the paper transport path.
  • Folding means having a folding plate that reciprocally rotates between a placement position where the sheet is placed and a stacking position where the folded portion of the sheet is folded toward the main body, wherein the folding means At the folding position, a pair of upper and lower guide plates forming a part of the sheet conveying path is provided. It is characterized in that, of the pair of upper and lower guide plates, it is constructed so as to be overlapped with the upper surface of the upper guide plate.
  • the paper folding apparatus according to the first aspect, wherein the folding means is arranged such that the main body portion of the paper passes between the pair of upper and lower guide plates at the folding position on the paper transport path. and a control means for controlling driving of the pair of conveying rollers for guiding the sheet to be folded.
  • the driving of the pair of transport rollers is stopped to stop the transport of the paper, and the folded portion of the paper is folded while the main body portion of the paper is held between the pair of transport rollers. It is characterized by controlling to process.
  • a third aspect of the present invention is the paper folding apparatus according to the first or second aspect, further comprising crease processing means upstream of the folding position in the paper conveying direction, wherein the crease processing means It is characterized in that a crease is formed in advance on the crease when folding the folded portion of the paper.
  • the invention according to claim 4 is the paper folding device according to any one of claims 1 to 3, wherein the folding means is arranged to face both sides in the width direction perpendicular to the paper conveying direction. It comprises a pair of folding devices consisting of a first folding device and a second folding device, wherein each of the first folding device and the second folding device rotates around a rotation axis along the conveying direction. It is characterized by having a folding plate that moves.
  • a central portion of the sheet on the conveying path is further held between the first folding device and the second folding device. It is characterized in that a conveying means for conveying while moving is arranged.
  • the conveying means comprises a pair of upper and lower conveying rollers, and the upper conveying roller of the pair of upper and lower conveying rollers is unitized. , and is detachable from the main body of the paper folding device.
  • a paper folding device that folds a flat sheet of paper while conveying it along a sheet conveying path, wherein the sheet of paper has a main body and a folding part projecting from the main body,
  • a folding plate provided at a folding position for folding the folded portion of the paper in the paper transport path places the folded portion of the paper around a pivot shaft substantially parallel to the paper transport path.
  • the folded portion of the paper is folded by reciprocally rotating between the placement position and the overlapping position where the folded portion of the paper is superimposed toward the main body, and the folding means At the folding position, a pair of upper and lower guide plates forming a part of the sheet conveying path are provided.
  • a bag making machine characterized in that, of a pair of upper and lower guide plates, the upper guide plate rotates so as to overlap the upper surface of the upper guide plate.
  • the paper folding apparatus according to the seventh aspect, wherein the folding means is configured such that the body portion of the paper passes between the pair of upper and lower guide plates at the folding position on the paper transport path.
  • the folding means folds the folded portion of the sheet
  • the driving of the pair of delivery rollers is stopped at the folding position, and the It is characterized in that the paper is stopped from being conveyed, and the folded portion of the paper is folded while the main body of the paper is held between the pair of conveying rollers.
  • the folding plate is turned from the overlapping position to the placing position. After that, the pair of conveying rollers are driven to a driving state to start conveying the sheet, and the folded sheet is moved downstream of the folding position in the sheet conveying direction. It is characterized by conveying toward.
  • the folded portion of the paper since the folded portion of the paper is folded back onto the upper surface of the upper guide plate while the main body portion of the paper is held between the pair of upper and lower guide plates, during processing, the folded portion of the paper cannot be bent. It is possible to prevent the occurrence of wrinkles and to secure the accuracy of the folding line position when folding the flap.
  • the folded portion of the paper is folded back onto the upper surface of the upper guide plate, and at the same time, the main body of the paper is folded between the pair of guide plates.
  • the folded part of the paper is folded while being held between the conveying rollers. Therefore, it is possible to prevent the occurrence of wrinkles in the crease portion of the paper, and to secure the accuracy of the crease position when folding the flap.
  • creases are formed in advance on the creases when folding the folded portion of the sheet, so that the accuracy of the crease position when folding the flap can be ensured.
  • a pair of folding devices consisting of a first folding device and a second folding device arranged opposite to each other in the width direction in the direction perpendicular to the sheet conveying direction is provided. Therefore, in the case of paper that has two folds on both sides in the width direction perpendicular to the paper transport direction, The workability is good because two folding portions can be folded at the same time by conveying the paper once.
  • the conveying means is arranged between the first folding device and the second folding device for conveying the sheet while holding the central portion of the sheet on the conveying path. Therefore, in particular, in the case where two folding portions are simultaneously folded in one sheet transport, the transport of the sheet is stabilized, and the processing accuracy is stabilized.
  • the conveying means is composed of a pair of upper and lower conveying rollers.
  • the upper conveying roller is formed as a unit and configured to be detachable from the main body of the paper folding apparatus. Therefore, paper jam processing and maintenance can be easily performed.
  • the folded portion of the paper since the folded portion of the paper is folded back onto the upper surface of the upper guide plate while the main body portion of the paper is held between the pair of upper and lower guide plates, during processing, the folded portion of the paper cannot be bent. It is possible to prevent the occurrence of wrinkles and to secure the accuracy of the folding line position when folding the flap.
  • the folded portion of the paper is folded back onto the upper surface of the upper guide plate, and at the same time, the main body of the paper is placed between the pair of guide plates.
  • the folded part of the paper is folded while being held between the conveying rollers. Therefore, it is possible to prevent the occurrence of wrinkles in the crease portion of the paper, and to secure the accuracy of the crease position when folding the flap.
  • the folding plate rotates by a predetermined angle from the overlapping position toward the placing position.
  • the sheet can be smoothly conveyed toward the downstream side of the folding position in the sheet conveying direction without being interfered by the folding plate or the pair of upper and lower guide plates, and the sheet can be smoothly conveyed between the rollers provided on the downstream side in the sheet conveying direction. can be folded.
  • FIG. 1 is a schematic overall configuration diagram of a bag making machine according to a first embodiment of the present invention
  • FIG. FIG. 2 is a plan view showing a state of paper processed by the bag making machine of FIG. 1
  • 3 is a plan view showing a state in which the sheet of FIG. 2 is folded
  • FIG. FIG. 3 is a perspective view showing a state in the middle of manufacturing a Western-style envelope
  • It is a figure which shows the state before and behind folding
  • It is a perspective view which shows the whole structure of a 1st folding part.
  • It is a perspective view showing the configuration of the first folding device.
  • It is a figure which shows the rotating mechanism of the folding plate of a 1st folding apparatus.
  • FIG. 10 is a diagram showing how the paper is processed in the second folding section
  • FIG. 11 is a diagram showing how the paper is processed following FIG. 10
  • FIG. 12 is a diagram illustrating how the paper is processed following FIG. 11
  • FIG. 13 is a diagram illustrating how the paper is processed following FIG. 12;
  • FIG. 1 shows a bag making machine 10 of one embodiment that employs the paper folding device (first folding section 3) of the present invention.
  • FIG. 1 is an overall configuration diagram of a bag making machine 10. As shown in FIG.
  • the bag making machine 10 includes, in order from the upstream side in the conveying direction, a paper feeding section 1, a first crease processing section 2, a second crease processing section 4, a first folding section 3, a glue application section 5, a second folding section 6, and a A paper discharge section 7 is provided in the apparatus main body 10A.
  • a common form of "Western-style envelope” has a horizontally long rectangular shape and a sealing opening is formed on the long side.
  • the bag making machine 10 transports the planar paper 100 shown in FIG.
  • a Western-style envelope 90 is manufactured by processing.
  • first fold line 111 extends along the transport direction.
  • second fold line 112 extends along a direction perpendicular to the conveying direction (that is, the width direction).
  • the output may be the Western-style envelope 90 shown in FIG. 2(c).
  • the rearmost surface portion 104 may be configured to be further folded at the third fold line 113 that is the boundary line between the rearmost surface portion 102 and the rearmost surface portion 104 . According to the above configuration, when the contents are inserted into the envelope and then sealed with tape or glue, since the envelope has a crease, it is possible to neatly seal the front side portion 101 where the rear side portion 104 is folded back. can.
  • the paper feeding unit 1 includes an air suction belt type air paper feeding unit 12, an elevator type paper feeding tray 11 that rises and falls according to the amount of paper loaded, and the paper sent out by the air paper feeding unit 12 is further conveyed. and a conveying roller 81 for conveying in the downstream direction.
  • the air feeder unit 12 also includes a sensor 22 for detecting that the uppermost sheet of paper stacked on the feeder tray 11 is attracted to the lower surface of the air feeder unit 12, and the feeder tray 11.
  • a sensor 21 is arranged to detect the upper limit position of the uppermost surface of the sheets stacked thereon.
  • the bag making machine 10 includes five conveying roller pairs 82, 85, 86, 87, and 88.
  • the five conveying roller pairs constitute a conveying surface 200 on which the paper 100 is conveyed, and the conveying surface 200 is coplanar from the air feeding unit 12 to the conveying roller pair 88 .
  • sensors 23, 24, 25, 26, 27, and 28 are arranged on the transport surface 200 on which the paper is transported to detect the passage of the paper at each position (detection of double feeding). ing.
  • Each sensor uses, for example, an optical transmission sensor.
  • the first crease processing unit 2 is composed of an upper mold having a convex upper part and a lower mold having a concave lower part. A transverse crease is formed in the direction perpendicular to the direction. A known mechanism can be employed as the crease processing portion 2 .
  • the second crease processing unit 4 includes an upper crease edge 83 having a round edge shape and a convex portion formed on the outer peripheral portion, and a lower edge edge having a round edge shape and a concave portion formed on the outer peripheral portion.
  • the crease blade 83 may be composed of a circular upper blade having a concave portion formed on the outer peripheral portion thereof and a circular lower blade having a convex portion formed on the outer peripheral portion thereof.
  • FIG. 6 is a perspective view showing the overall configuration of the first folding portion 3.
  • the first folding unit 3 serves as folding means for folding portions 103 on the left and right sides of the paper 100.
  • a pair of folding devices ( It consists of a first folding device 3a and a second folding device 3b).
  • the pair of folding devices 3a and 3b have a symmetrical structure.
  • FIG. 7 shows the first folding device 3a arranged on the left side of FIG. 6, and has a folding plate 32 that rotates around a rotating shaft 31 along the conveying direction.
  • An upper guide plate 36 is provided above the lower guide plate 33 with a predetermined gap therebetween, and a pair of conveying rollers (a driving roller 38 and a driven roller 35). 7, the rotating shaft of the driven roller 35 and other drive mechanisms are omitted.
  • a pair of folding devices consisting of a first folding device 3a and a second folding device 3b arranged opposite to each other in the width direction in the direction perpendicular to the paper conveying direction is provided.
  • the two folding portions 103 can be folded at the same time by carrying the paper once, resulting in good workability.
  • a transporting means 15 is further arranged for transporting while holding the central portion of the sheet on the transport path.
  • the conveying means 15 is composed of a pair of upper and lower conveying rollers 151, 152, 153, 154, 155 and 156.
  • the upper conveying rollers 151, 153 (not shown) and 155 (not shown) is unitized so that the operator can easily attach and detach the unit 15a from the paper folding apparatus main body 10 by holding the handle 16 of the unit 15a in case of paper jam or maintenance.
  • the transporting means 15 for transporting the paper while holding the central portion of the paper on the transport path is arranged. In the case of simultaneously folding the folded portions in two places, the paper is conveyed stably and the processing accuracy is stabilized.
  • the first folding device 3a has a folding plate 32 that rotates around a rotating shaft 31 along the conveying direction.
  • An upper guide plate 36 is provided with a predetermined gap between the upper guide plate 36 and a pair of transport roller pairs (drive roller 38 and driven roller 35) for transporting the paper 100 transported on the lower guide plate 33 to the downstream side.
  • a notch is formed in the lower guide plate 33 at the nip portion of the roller pair.
  • the main body of the paper is held between the pair of upper and lower guide plates (36, 33), and the folded portion of the paper is folded back onto the upper surface of the upper guide plate. It is possible to prevent the occurrence of wrinkles in the part, and to secure the accuracy of the folding line position when folding the flap.
  • FIG. 8 the rotating mechanism 300 for the folding plate 32 will be described with reference to FIGS. 8 and 9.
  • FIG. 8 shows a state in which the folding plate 32 is arranged at the placement position where the folded portion 103 of the sheet is placed, and FIG. It shows a state on the way to a superimposed position to superimpose toward the main body.
  • 8 and 9 are front views of the first folding device 3a of FIG. 7 as seen from direction A, respectively. Since the second folding device 3b has the same configuration as the first folding device 3a, the description thereof will be omitted.
  • the first folding device 3a comprises a folding means having a folding plate 32 that reciprocates around a shaft 31 along the conveying direction.
  • the folding plate 32 is provided so as to rotate 180 degrees on the horizontal plane.
  • the rotating mechanism 300 of the folding plate 32 includes a motor 301, a first pulley 302, a transmission belt 303, a second pulley 304, a rotating gear 305, a swing gear 306, a slide shaft 307, and a slide receiving portion 308. and
  • the transmission belt 303 is stretched over the first pulley 302 and the second pulley 304 .
  • the second pulley 304 and the rotating gear 305 are integrally supported by the rotating shaft 311 .
  • the rocking gear 306 is supported by a rotating shaft 312 .
  • the slide shaft 307 protrudes from the upper end of the rocking gear 306 .
  • the slide receiving portion 308 is integrally formed perpendicular to the folding plate 32 .
  • a slide groove 3081 for receiving the slide shaft 307 is formed in the slide receiving portion 308 .
  • the slide shaft 307 is movably engaged with the slide groove 3081 via the spacer 309 .
  • the rotation mechanism 300 operates as follows. That is, when the motor 301 operates, the rotating gear 305 rotates through the first pulley 302 , the transmission belt 303 and the second pulley 304 . When the rotating gear 305 rotates, the rocking gear 306 rocks and the folding plate 32 rotates.
  • the folding plate 32 moves in the R5 direction. to rotate.
  • the rotating mechanism 300 the folding plate 32 can be rotated 180 degrees on the horizontal plane, as shown in FIGS. 5(a) to 5(c).
  • the first folding device 3a As a result, according to the first folding device 3a, as shown in FIG. By rotating the folding plate 32 in the R5 direction, the folding plate 32 can be folded inward through the upper guide plate 36 so as to overlap the surface of the rear surface portion 102 .
  • the glue application unit 5 is composed of a pair of application devices 5a and 5b arranged opposite to each other in the width direction.
  • the coating device 5a and the coating device 5b have a bilaterally symmetrical configuration.
  • the coating devices 5a and 5b have a nozzle portion, a position setting mechanism, and a vertical driving mechanism (not shown).
  • the nozzle portion can apply glue to the paper being conveyed at a predetermined timing.
  • the second folding unit 6 is a paper folding device that folds the planar paper 100 while conveying it along the conveying surface 200.
  • the second folding unit 6 includes a pair of first conveying rollers 86 arranged on the upstream side in the paper conveying direction. , a second conveying roller pair 87 arranged on the downstream side in the paper conveying direction, a switching gate plate 63 installed between both roller pairs, a folding plate 62 arranged above the switching gate plate 63, It has
  • the switching gate plate 63 is rotatable around the support shaft 631 and interferes with the transported paper 100 so that the leading edge of the paper 100 passes over the upper surface of the upper roller 871 of the second transport roller pair 87. can be switched between a first guide position that guides upward so as to do so and a second guide position that guides in a substantially horizontal direction toward the nip portion 873 of the second conveying roller pair 87,
  • the folding plate 62 is configured to be movable in the vertical direction while maintaining a substantially horizontal state. It is possible to switch between the retracted position and the retracted position.
  • the pressure unit 8 is composed of a vertically movable upper mold 8a and a stationary lower mold 8b. By pinching, additional pressure is applied to make the folds firmer.
  • the paper discharge section 7 has a transport roller pair 88 and a paper discharge tray 71 .
  • the transport roller pair 88 is provided to act as an ejection roller.
  • the conveying roller pair 88 is arranged near the second conveying roller pair 87 of the second folding section 6 and downstream in the conveying direction.
  • the discharge tray 71 is inclined from a position below the transport surface 200 obliquely upward and downstream in the transport direction.
  • the paper 100 shown in FIG. 2 is placed on the paper feed tray 11 .
  • the front surface portion 101 is positioned downstream in the transport direction.
  • a switch (not shown) is turned on to start operation.
  • the paper 100 on the uppermost surface of the paper feed tray 11 is sent toward the transport roller pair 81 while being sucked by the air suction belt in the air paper feed unit 12, and the paper 100 is transferred to the transport roller pair 81. After that, it is further conveyed downstream in the conveying direction by the conveying roller pair 81 . After that, it passes through the first crease processing section 2 . At this time, the first crease processing unit 2 operates to form creases on the second fold line 112 and the third fold line 113 of the paper 100 . As a result, the front surface portion 101 can be easily folded back toward the rear surface portion 102 side. In addition, the rearmost surface portion 104 can be easily folded back toward the folded front surface portion 101 side.
  • the paper 100 conveyed from the first crease processing section 2 passes through the second crease processing section 4 .
  • the first creases 111 (two places on the left and right in the width direction) of the paper 100 are directly below the crease blades (round blades) of the second crease processing unit 4 that are installed in two places in the width direction perpendicular to the conveying direction. positioned.
  • the second crease processing unit 4 operates to form a crease on the first crease 111 .
  • the pieces 103 (two places on the left and right in the width direction) can be easily folded inward.
  • the paper 100 on which creases are formed by the second crease processing section 4 stops at the first folding section 3 .
  • a crease in advance on the crease (111) when folding the folded portion 103 of the sheet, it is possible to ensure the accuracy of the crease position when folding the flap.
  • an upper guide plate 36 is installed above the lower guide plate 33 with a predetermined gap.
  • a transport roller pair drive roller 38 and driven roller 35 for transporting the paper 100 transported on the lower guide plate 33 further downstream.
  • a notch is formed in the lower guide plate 33 at the nip portion of the conveying roller pair.
  • the folding plate 32 of the folding device 3a (3b) of the first folding section 3 is positioned on the outside in the width direction, and the pieces 103 on both sides of the paper 100 are placed on the folding plate 32. (placement position).
  • the folding plate 32 is rotated in the R5 direction toward the inner lower guide plate 33, whereby the piece 103 is folded back inward at the crease-processed first crease 111. Then, as shown in FIG. 5(c), it is overlaid on the rear surface portion (main body portion) 102 via the upper guide plate 36 (overlap position).
  • the folding plate 32 rotates in a direction R6 away from the lower guide plate 33 on the outer side.
  • the pair of conveying rollers conveys the sheet 100 with the folded portion 103 downstream in the conveying direction.
  • an upper guide plate 36 and a driven roller 35 as a pressing roller for holding the paper 100 on the upper guide plate 36 are provided, and the folding means is the folding portion 103 of the paper.
  • the control means stops the driving of the pair of conveying rollers (the driving roller 38 and the driven roller 35) at the bending position to stop conveying the sheet 100, and the main body of the sheet 100. While holding the portion 102 between the pair of conveying rollers 38 and 35, the folding portion 103 of the paper 100 is controlled to be folded.
  • the folded portion 103 of the paper is folded back onto the upper surface of the upper guide plate 36, and at the same time, the main body portion of the paper is While holding the sheet 102 between the pair of conveying rollers 36 and 33, the folding portion 103 of the sheet is folded. Therefore, it is possible to further ensure the accuracy of the fold position when folding the folded portion 103 .
  • the paper 100 with the folded back portion 103 is conveyed downstream in the conveying direction by the conveying roller pair 85 and passes through the glue applying section 5 .
  • the glue applying section 5 when the folded back pieces 103 of the sheet 100 start to pass, the nozzle sections 5a and 5b installed at two positions in the width direction perpendicular to the conveying direction move downward. , contact the surface of the piece 103, and when the passage of the piece 103 is completed, the nozzles 5a and 5b move upward and separate from the surface of the piece 103. As shown in FIG. As a result, glue is applied to the surface of the folded piece 103 .
  • the folded piece 103 passes through the nozzles 5a and 5b while being pressed by the pair of transport rollers 85 positioned upstream of the nozzles 5a and 5b in the transport direction, or after being pressed. do. Therefore, the glue application work by the nozzles 5a and 5b can be stably performed.
  • the second folding unit 6 is a paper folding device that folds the planar paper 100 while conveying it along the conveying surface 200, and includes a first conveying roller arranged upstream in the paper conveying direction. pair 86, a second transport roller pair 87 arranged downstream in the paper transport direction, a switching gate plate 63 installed on the paper transport surface 200 between the two roller pairs, and a switching gate plate 63 facing It has a folding plate 62 arranged and a control means (not shown) for controlling the operation of the whole device.
  • the switching gate plate 63 interferes with the paper 100 being conveyed, bends the paper conveying direction outward from the paper conveying surface 200, and directs the leading edge of the paper 100 toward one roller surface of the second conveying roller pair 87. and a second guide position for guiding along the sheet conveying surface 200 toward the nip portion 873 of the second conveying roller pair 87,
  • the folding plate 62 is configured to be movable toward the switching gate plate 63 while maintaining a substantially horizontal state. It is possible to switch between a retracted position that retracts at a predetermined interval, and the control means controls the leading edge of the paper 100 to be conveyed by the switching gate plate 63 arranged at the first guide position.
  • the switching gate plate 63 After guiding the switching gate plate 63 to the second guide position, after guiding the switching gate plate 63 to the second guide position, the switching gate plate 63 By lowering the folding plate 62 arranged at the retracted position to the folding position in a substantially horizontal state so as to sandwich the upper paper 100 , the leading edge of the paper 100 is moved to one roller of the second conveying roller pair 87 . It is controlled to fold back along the surface.
  • the paper 100 with glue applied to the piece 103 is conveyed to the second folding section 6 (in the F direction) by the conveying roller pair 85 .
  • the switching gate plate 63 is set upward toward the second conveying roller pair 87 as the first guide position. Therefore, as shown in FIG. 10, the sheet 100 is guided upward by the switching gate plate 63 so that the leading edge of the sheet 100 passes over the upper surface of the upper roller 871 of the second conveying roller pair 87.
  • the position of the second folding line 112 of 100 reaches the folding position (the position directly below the edge 621 of the folding plate 62)
  • the transport is temporarily stopped.
  • the folding plate 62 maintains the retracted position.
  • the width of the upper roller 861 of the first conveying roller pair 86 is set so that it does not come into contact with the surface of the piece 103 . No glue adheres to the first conveying roller pair 86 .
  • the switching gate plate 63 is moved to the second guide position (substantially horizontal position) while the folding plate 62 is maintained at the retracted position.
  • the folding plate 62 arranged at the retracted position is lowered to the folding position in a substantially horizontal state so that the paper 100 on the switching gate plate 63 is sandwiched therebetween. is folded back along the surface of the upper roller 871 of the second conveying roller pair 87 from the second folding line 112 .
  • the distance between the switching gate plate 63 and the bent plate 62 after the descent is set so that at least a gap enough to convey the paper can be secured between the bent plate 62 and the switching gate plate 63 . configured to For example, a gap of approximately 1 mm is ensured.
  • the structure can be simply and inexpensively constructed without complicating the structure.
  • the control means automatically adjusts the folding position according to various folding specifications, it is possible to provide a paper folding apparatus with excellent operability. Further, it prevents the folded-back piece from being wrinkled, and also prevents adhesive from adhering to the interior of the folding mechanism such as the stopper during folding, which adversely affects the quality of the finished product.
  • the leading end portion of the paper is folded back by the first conveying roller pair 86.
  • the folded leading edge portion 105 of the paper is transported toward the nip portion 873 of the second transport roller pair 87, and the nip portion 873 of the second transport roller pair 87 pinches the folded leading edge portion 105 of the paper and transports the paper in the F direction.
  • the leading edge folding portion 105 of the paper is pressed and folded.
  • the entire front surface portion 101 is folded back to fit the surface of the rear surface portion 102 , and both edges of the front surface portion 101 are joined to the piece portions 103 at this time.
  • a Western-style envelope 90 is obtained. It should be noted that the conveyance in the F direction is carried out until the rearmost surface portion 104 of the paper 100 passes through the nip portion 863 of the first conveying roller pair 86 by a predetermined amount. At this time, the paper 100 is conveyed through the gap between the folding plate 62 and the switching gate plate 63 (while being guided by both plates). According to this, the sheet can be reliably transferred to the pressing portion by the nip portion 873 of the second conveying roller pair 87 on the next stage without wrinkling or the like.
  • the folded leading edge portion of the sheet is pressed by the nip portion 873 of the second conveying roller pair 87 and folded. , the paper can be reliably creases.

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  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

[Problème] Éviter la survenue de plis dans la ligne de pliage de papier, quelles que soient les conditions, telles que le type et la taille du papier soumis à un traitement de pliage, et garantir la précision de la position de la ligne de pliage lors du pliage de la partie repliée (telle que la partie de rabat) d'une enveloppe. [Solution] Un moyen de repliage est équipé d'une paire de plaques de guidage supérieure et inférieure qui font partie d'un trajet de transport de papier au niveau de la position de pliage. Une plaque de pliage est configurée de telle sorte que, lorsque la plaque de pliage est mise en rotation de la position de placement à la position de chevauchement, la surface inférieure de la plaque de pliage chevauche la surface supérieure de la plaque de guidage supérieure parmi la paire de plaques de guidage supérieure et inférieure.
PCT/JP2021/025409 2021-07-06 2021-07-06 Dispositif de pliage de papier WO2023281615A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2021/025409 WO2023281615A1 (fr) 2021-07-06 2021-07-06 Dispositif de pliage de papier
EP21949251.9A EP4368548A1 (fr) 2021-07-06 2021-07-06 Dispositif de pliage de papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/025409 WO2023281615A1 (fr) 2021-07-06 2021-07-06 Dispositif de pliage de papier

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JPS63104376U (fr) * 1986-12-23 1988-07-06
JPH07285733A (ja) * 1994-04-14 1995-10-31 Tokin Corp 紙折り装置及び折りぐせ付け装置及びマルチ紙折り装置
JPH09240628A (ja) 1996-03-04 1997-09-16 Tanaka Seiki Kk 封緘方法および装置
JPH1129257A (ja) * 1997-07-10 1999-02-02 Hakko Shokai:Kk 棒状に巻き取られた布製品等の製造方法及び巻き取り装置，包装装置
JP2006341991A (ja) * 2005-06-10 2006-12-21 Canon Inc シート処理装置および画像形成装置
JP2014144848A (ja) * 2013-01-29 2014-08-14 Duplo Corp 用紙筋付装置及び用紙折り装置
JP2016005992A (ja) * 2013-01-18 2016-01-14 株式会社リコー シート処理装置及び画像形成システム

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JPS63104376U (fr) * 1986-12-23 1988-07-06
JPH07285733A (ja) * 1994-04-14 1995-10-31 Tokin Corp 紙折り装置及び折りぐせ付け装置及びマルチ紙折り装置
JPH09240628A (ja) 1996-03-04 1997-09-16 Tanaka Seiki Kk 封緘方法および装置
JPH1129257A (ja) * 1997-07-10 1999-02-02 Hakko Shokai:Kk 棒状に巻き取られた布製品等の製造方法及び巻き取り装置，包装装置
JP2006341991A (ja) * 2005-06-10 2006-12-21 Canon Inc シート処理装置および画像形成装置
JP2016005992A (ja) * 2013-01-18 2016-01-14 株式会社リコー シート処理装置及び画像形成システム
JP2014144848A (ja) * 2013-01-29 2014-08-14 Duplo Corp 用紙筋付装置及び用紙折り装置

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